Hex Bolt Grade 8 Yellow Zinc 3/4 – 16 NF
Hex Bolt Grade 8 Yellow Zinc 3/4 – 16; higher tensile strength then a grade 5 bolt:
- 3/4″ – 16 TPI (Threads Per Inch) Fine thread bolts
- Grade 8 bolts are made of medium carbon alloy steel that has first been quenched to harden them, then tempered to restore some ductility.
- Grade 8 bolts are generally harder, but more brittle than grade 5 bolts.
- Electro-plating gives grade 8 bolts their yellow sheen (yellow zinc) and provides some corrosion resistance; however, they will eventually rust if the coating is damaged or scratched off or if the bolts are exposed to high saline environments.
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